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| Reverse circulation system parameters | ||||||
| Technical parameters | Unit | SL1200S/1200SL | SL1300 | SL1500 | SL2000S | SL3000S |
| Max drilling depth | M | 1200 | 1300 | 1500 | 2000 | 3000 |
| Drilling diameter | mm | 105-900 | 105-900 | 105-1000 | 105-1000 | 105-1000 |
| Air pressure | Mpa | 1.65-8 | 1.65-8 | 1.65-8 | 1.65-8 | 1.65-8 |
| Air consumption | m³/min | 16-120 | 16-120 | 16-120 | 16-120 | 16-150 |
| Drill pipe length | m | 7/9.6 | 7 | 7 | 15.4 | 15.4 |
| Drill pipe diameter | mm | 114/127 | 114/127 | 127 | ≥127 | ≥127 |
| Axial pressure | T | 10 | 13 | 16 | 19 | 19 |
| Lifting force | T | 60 | 61 | 80 | 100 | 130 |
| Fast lifting speed | m/min | 29 | 29 | 28 | 26 | 30 |
| Fast feeding speed | m/min | 51 | 39 | 44 | 43 | 59 |
| Max rotary torque | Nm | 24000/12000 or 30000/15000 | 26000/13000 | 31000/15500 | 36000 | 40000 |
| Max rotary speed | r/min | 85/170 | 70/140 | 80/160 | 150 | 158 |
| Big auxiliary which lifting force | T | 5 | 5 | 5 | 5 | 5 |
| Small auxiliary winch lifting force | T | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Jacks stroke | m | 1.7 | 1.7 | 1.7 | 1.2 | 1.2 |
| Drilling efficiency | m/h | 10-35 | 10-35 | 10-35 | 10-35 | 10-35 |
| Moving speed | Km/h | 6 | 6 | 3.5 | 5.4 | 5.4 |
| Uphill angle | slope | 21° | 21° | 21° | 21° | 21° |
| Weight of the rig | T | 23/25 | 21 | 28 | 36 | 55 |
| Dimension | m | 7*2.25*3 / 10.85*2.25*2.98 | 8.8*2.25*3 | 11.5*2.6*3.5 | 12*2.6*3.6 | 13.95*2.55*3.99 |
| Engine | / | Weichai 220kw / Cummins 264kw | Cummins 264kw | Cummins 264kw | Cummins 410kw | Cummins 567kw |
| Working condition | Unconsolidated formation and stone head | |||||
| Drilling method | Top drive hydraulic rotary and pushing hammer or mud drilling | |||||
| Matched DTH hammer | Medium and high air pressure series | |||||
| Optional accessories | Mud pump,Centrifugal pump,Generator,foam pump | |||||








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